bitcoin/src/test/base32_tests.cpp
Vasil Dimov ecc6cf1a3b
test: fix creation of std::string objects with \0s
A string literal `"abc"` contains a terminating `\0`, so that is 4
bytes. There is no need to write `"abc\0"` unless two terminating
`\0`s are necessary.

`std::string` objects do not internally contain a terminating `\0`, so
`std::string("abc")` creates a string with size 3 and is the same as
`std::string("abc", 3)`.

In `"\01"` the `01` part is interpreted as one number (1) and that is
the same as `"\1"` which is a string like `{1, 0}` whereas `"\0z"` is a
string like `{0, 'z', 0}`. To create a string like `{0, '1', 0}` one
must use `"\0" "1"`.

Adjust the tests accordingly.
2020-10-31 16:02:49 +01:00

39 lines
1.4 KiB
C++

// Copyright (c) 2012-2020 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <test/util/setup_common.h>
#include <util/strencodings.h>
#include <boost/test/unit_test.hpp>
#include <string>
using namespace std::literals;
BOOST_FIXTURE_TEST_SUITE(base32_tests, BasicTestingSetup)
BOOST_AUTO_TEST_CASE(base32_testvectors)
{
static const std::string vstrIn[] = {"","f","fo","foo","foob","fooba","foobar"};
static const std::string vstrOut[] = {"","my======","mzxq====","mzxw6===","mzxw6yq=","mzxw6ytb","mzxw6ytboi======"};
for (unsigned int i=0; i<sizeof(vstrIn)/sizeof(vstrIn[0]); i++)
{
std::string strEnc = EncodeBase32(vstrIn[i]);
BOOST_CHECK_EQUAL(strEnc, vstrOut[i]);
std::string strDec = DecodeBase32(vstrOut[i]);
BOOST_CHECK_EQUAL(strDec, vstrIn[i]);
}
// Decoding strings with embedded NUL characters should fail
bool failure;
(void)DecodeBase32("invalid\0"s, &failure); // correct size, invalid due to \0
BOOST_CHECK(failure);
(void)DecodeBase32("AWSX3VPP"s, &failure); // valid
BOOST_CHECK(!failure);
(void)DecodeBase32("AWSX3VPP\0invalid"s, &failure); // correct size, invalid due to \0
BOOST_CHECK(failure);
(void)DecodeBase32("AWSX3VPPinvalid"s, &failure); // invalid size
BOOST_CHECK(failure);
}
BOOST_AUTO_TEST_SUITE_END()